Should have added my own to this post...
Lived near Richmond, VA for a couple years from 1988-91. The former NPR station (owned by a Presbyterian seminary) decided running a 22-hour-a-day public radio format was for the birds and sold the commercial frequency (106.5) to a group of lawyers who upgraded the station to a full class B build out. About 4 months later, they signed the station back on as hot AC WVMX "Mix 106". About a year after sign on the lawyers decide to cash out. AFAIK, they were able to trademark "WVMX" and "Mix 106" and the new owners were required to change both the name and format of the station as a condition of purchase (I'm assuming one of the partners probably wanted to resurrect the Mix format somewhere else in town).
This is where things get weird: The new owners flip the format to all-metal "MX106" retaining the WVMX calls. Even in 1989, metal as a dedicated format was fairly niche, even more so considering Richmond is a mid-sized market and was at the time very old-money socially conservative (Richmond is one of the few towns that Howard Stern couldn't last in due to an advertiser's protest...same station as a modern rocker 7 years later). Anywho, the idea that someone would buy a state-of-the-art station to play headbanging rock was bizarre, but they put waaaaay too much effort into it for just a wacky placeholder format: They had DJs, newspaper ads, live events, even a contest where they gave away a several-thousand-dollar stereo system.
Whether it was all a ruse or not I have never determined. Maybe someone knows...It did appear they were trying to make a go of a full-time metal format! MX106 signed on in very early August '89...before the end of the month the format was jettisoned and 106.5 became WVGO "Oldies 106".
Archie B.